Valentine's Surprise SF Lindy Ball Womens Building, 3543 18th St., SF. sfswingjam.eventbee.com. 7:30 p.m.-12:30 a.m., $22 This Lindy Hop and Swing ball is actually the centerpiece of a three-day swing summit in celebration of romance (check the website for full line-up) — because what says, "I love you" more than artfully mopping the floor with your partner? We sure don't know. Hoppin' workshops and technique tune-up sessions complement the ball, which consists of a Lindy contest, live swing music, and a surprise 91st birthday celebration for classic movie star Ray Hirsch. Lessons offered!
Watson's "Naked at the Art Museum Scavenger Hunt" Legion of Honor, 34th Ave, SF. (415) 750-3600, legionofhonor.famsf.org. Through Sunday. 2 p.m.-4:30 p.m., $20. Who said museums had to be tame? Bring a lover or friend this weekend to the Legion of Honor for a sexy scavenger hunt. You will scope the halls for studly sculptures, titillating paintings, bathing beauties, and many sexy inanimate objects more. Museums will never be the same again.
SF Mixtape Society's "Under The Covers" music exchange and contest The Make-Out Room, 3225 22nd St, SF. (415) 440-4177, www.sfmixtapesociety.com. 6 p.m., free with mix. Don't have someone to make a mixtape for this year? It's OK. Your ex's music taste was awful anyways! Put that playlist you love on a CD, cassette, or USB drive and have it land right in the ears of a random yet lucky someone. You'll end the night with someone else's coveted mix, and everyone will get to vote for the playlist with the best track listings and artwork.
Litquake Literary Festival presents: Love Hurts readings of grief-stricken passages of love and lust The Make-Out Room, 3225 22nd St, SF. (415) 440-4177, www.litquake.org. 7 p.m., $10. Ten Bay Area writers will give their own cynical (and mostly hilarious) twists on the forlorn words of some of the most melancholic and/or melodramatic novels ever written. Come sort out the parallels between drug dependency and romance in Valley of the Dolls, the masochistic plotline of The Story of O, and many more classics that well forewarned of broken hearts.
Club Neon's Eighth Annual Valentine's Day Underwear Party The Knockout, 3223 Mission, SF. (415) 550-6884, www.theknockoutsf.com. 10 p.m.-2 a.m., $5, free with no pants before 11 p.m.! This is THE event for fresh and nubile indie heartbreakers, stripping down to make you all "damn!" and stuff. One of our favorite annual pantsless throwdowns, with steamy rock DJs Jamie Jams and EmDee making you want to take it all off.
The Fifth Annual Poetry and Music Battle of ALL of the Sexes Uncle Al and Mama Dee's Cafe at POOR Magazine, 2940 16th St, SF. (415) 865-1932, www.poormagazine.org. 7 p.m., $5-$20 suggested donation for dinner and show. Instead of scribbling your words in to a Hallmark card, show off your love this Valentine's in rhyme and verse. All proceeds will support POOR magazine, a local arts organization that advocates education and media access for struggling communities. The theme is 1950s, but the beats will be timeless.